CodeIgniter 4 CRUD with MySQL app allows users to create, read, update, and delete data from mysql database with bootstrap views.
Here are steps to create the crud operation application with Bootstrap and MySQL:
Step 1: Setup Codeigniter 4 Project
In this step, you will download the latest version of Codeigniter 4, Go to this link https://codeigniter.com/download Download Codeigniter 4 fresh new setup and unzip the setup in your local system xampp/htdocs/ . And change the download folder name “demo”
Step 2: Basic Configurations
Next, you will set some basic configuration on the app/config/app.php file, so let’s go to application/config/config.php and open this file on text editor.
Set Base URL like this
public $baseURL = 'http://localhost:8080'; To public $baseURL = 'http://localhost/demo/';
Step 3: Create Database and Table
In this step, you need to create a database name demo, so let’s open your PHPMyAdmin and create the database with the name demo. After successfully create a database, you can use the below SQL query for creating a table in your database:
CREATE TABLE users (
id int(11) NOT NULL AUTO_INCREMENT COMMENT 'Primary Key',
name varchar(100) NOT NULL COMMENT 'Name',
email varchar(255) NOT NULL COMMENT 'Email Address',
contact_no varchar(50) NOT NULL COMMENT 'Contact No',
created_at varchar(20) NOT NULL COMMENT 'Created date',
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT='datatable demo table' AUTO_INCREMENT=1;
INSERT INTO users(id, name, email, contact_no, created_at) VALUES
(1, 'Team', '[email protected]', '9000000001', '2019-01-01'),
(2, 'Admin', '[email protected]', '9000000002', '2019-01-02'),
(3, 'User', '[email protected]', '9000000003', '2019-01-03'),
(4, 'Editor', '[email protected]', '9000000004', '2019-01-04'),
(5, 'Writer', '[email protected]', '9000000005', '2019-01-05'),
(6, 'Contact', '[email protected]', '9000000006', '2019-01-06'),
(7, 'Manager', '[email protected]', '9000000007', '2019-01-07'),
(8, 'John', '[email protected]', '9000000055', '2019-01-08'),
(9, 'Merry', '[email protected]', '9000000088', '2019-01-09'),
(10, 'Keliv', '[email protected]', '9000550088', '2019-01-10'),
(11, 'Herry', '[email protected]', '9050550088', '2019-01-11'),
(12, 'Mark', '[email protected]', '9050550998', '2019-01-12');
Step 4: Configure Database
In this step, you need to connect our project to the database. you need to go app/Config/Database.php and open database.php file in text editor. After opening the file in a text editor, you need to set up database credentials in this file like below.
public $default = [
'DSN' => '',
'hostname' => 'localhost',
'username' => 'root',
'password' => '',
'database' => 'demo',
'DBDriver' => 'MySQLi',
'DBPrefix' => '',
'pConnect' => false,
'DBDebug' => (ENVIRONMENT !== 'production'),
'cacheOn' => false,
'cacheDir' => '',
'charset' => 'utf8',
'DBCollat' => 'utf8_general_ci',
'swapPre' => '',
'encrypt' => false,
'compress' => false,
'strictOn' => false,
'failover' => [],
'port' => 3306,
];
Step 5: Create Model and Controller
So go to app/Models/ and create here one model. And you need to create one model name UserModel.php and update the following code into your UserModel.php file:
<?php namespace App\Models;
use CodeIgniter\Database\ConnectionInterface;
use CodeIgniter\Model;
class UserModel extends Model
{
protected $table = 'users';
protected $allowedFields = ['name', 'email'];
}
Now Go to app/Controllers and create a controller name Users.php. In this controller, you will create some method/function. you will build some of the methods like:
<?php namespace App\Controllers;
use CodeIgniter\Controller;
use App\Models\UserModel;
class Users extends Controller
{
public function index()
{
$model = new UserModel();
$data['users'] = $model->orderBy('id', 'DESC')->findAll();
return view('users', $data);
}
public function create()
{
return view('create-user');
}
public function store()
{
helper(['form', 'url']);
$model = new UserModel();
$data = [
'name' => $this->request->getVar('name'),
'email' => $this->request->getVar('email'),
];
$save = $model->insert($data);
return redirect()->to( base_url('public/index.php/users') );
}
public function edit($id = null)
{
$model = new UserModel();
$data['user'] = $model->where('id', $id)->first();
return view('public/index.php/edit-user', $data);
}
public function update()
{
helper(['form', 'url']);
$model = new UserModel();
$id = $this->request->getVar('id');
$data = [
'name' => $this->request->getVar('name'),
'email' => $this->request->getVar('email'),
];
$save = $model->update($id,$data);
return redirect()->to( base_url('public/index.php/users') );
}
public function delete($id = null)
{
$model = new UserModel();
$data['user'] = $model->where('id', $id)->delete();
return redirect()->to( base_url('public/index.php/users') );
}
}
Step 6: Create CRUD Views
Now you need to create some views file.
The views file name following:
- users.php
- create-user.php
- edit-user.php
Create users.php file inside views folder and update the following code into your file:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>Codeigniter 4 users List Example - Tutsmake.com</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
</head>
<body>
<div class="container mt-5">
<a href="<?php echo site_url('public/index.php/users/create') ?>" class="btn btn-success mb-2">Create</a>
<?php
if(isset($_SESSION['msg'])){
echo $_SESSION['msg'];
}
?>
<div class="row mt-3">
<table class="table table-bordered" id="users">
<thead>
<tr>
<th>Id</th>
<th>Name</th>
<th>Email</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<?php if($users): ?>
<?php foreach($users as $user): ?>
<tr>
<td><?php echo $user['id']; ?></td>
<td><?php echo $user['name']; ?></td>
<td><?php echo $user['email']; ?></td>
<td>
<a href="<?php echo base_url('public/index.php/users/edit/'.$user['id']);?>" class="btn btn-success">Edit</a>
<a href="<?php echo base_url('public/index.php/users/delete/'.$user['id']);?>" class="btn btn-danger">Delete</a>
</td>
</tr>
<?php endforeach; ?>
<?php endif; ?>
</tbody>
</table>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.20/css/jquery.dataTables.min.css">
<script src="https://cdn.datatables.net/1.10.20/js/jquery.dataTables.min.js" type="text/javascript"></script>
<script>
$(document).ready( function () {
$('#users').DataTable();
} );
</script>
</body>
</html>
Create create-user.php file inside views folder and update the following code into your file:
<!DOCTYPE html>
<html>
<head>
<title>Codeigniter 4 User Form With Validation Example</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/jquery.validate.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/additional-methods.min.js"></script>
</head>
<body>
<div class="container">
<br>
<?= \Config\Services::validation()->listErrors(); ?>
<span class="d-none alert alert-success mb-3" id="res_message"></span>
<div class="row">
<div class="col-md-9">
<form action="<?php echo base_url('public/index.php/users/store');?>" name="user_create" id="user_create" method="post" accept-charset="utf-8">
<div class="form-group">
<label for="formGroupExampleInput">Name</label>
<input type="text" name="name" class="form-control" id="formGroupExampleInput" placeholder="Please enter name">
</div>
<div class="form-group">
<label for="email">Email Id</label>
<input type="text" name="email" class="form-control" id="email" placeholder="Please enter email id">
</div>
<div class="form-group">
<button type="submit" id="send_form" class="btn btn-success">Submit</button>
</div>
</form>
</div>
</div>
</div>
<script>
if ($("#user_create").length > 0) {
$("#user_create").validate({
rules: {
name: {
required: true,
},
email: {
required: true,
maxlength: 50,
email: true,
},
},
messages: {
name: {
required: "Please enter name",
},
email: {
required: "Please enter valid email",
email: "Please enter valid email",
maxlength: "The email name should less than or equal to 50 characters",
},
},
})
}
</script>
</body>
</html>
Create edit-user.php file inside views folder and update the following code into your file:
<!DOCTYPE html>
<html>
<head>
<title>Codeigniter 4 Edit User Form With Validation Example</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/jquery.validate.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/additional-methods.min.js"></script>
</head>
<body>
<div class="container">
<br>
<?= \Config\Services::validation()->listErrors(); ?>
<span class="d-none alert alert-success mb-3" id="res_message"></span>
<div class="row">
<div class="col-md-9">
<form action="<?php echo base_url('public/index.php/users/update');?>" name="edit-user" id="edit-user" method="post" accept-charset="utf-8">
<input type="hidden" name="id" class="form-control" id="id" value="<?php echo $user['id'] ?>">
<div class="form-group">
<label for="formGroupExampleInput">Name</label>
<input type="text" name="name" class="form-control" id="formGroupExampleInput" placeholder="Please enter name" value="<?php echo $user['name'] ?>">
</div>
<div class="form-group">
<label for="email">Email Id</label>
<input type="text" name="email" class="form-control" id="email" placeholder="Please enter email id" value="<?php echo $user['email'] ?>">
</div>
<div class="form-group">
<button type="submit" id="send_form" class="btn btn-success">Submit</button>
</div>
</form>
</div>
</div>
</div>
<script>
if ($("#edit-user").length > 0) {
$("#edit-user").validate({
rules: {
name: {
required: true,
},
email: {
required: true,
maxlength: 50,
email: true,
},
},
messages: {
name: {
required: "Please enter name",
},
email: {
required: "Please enter valid email",
email: "Please enter valid email",
maxlength: "The email name should less than or equal to 50 characters",
},
},
})
}
</script>
</body>
</html>
Step 7: Test Project
For start development server, Go to the browser and hit below the URL.
http://localhost/demo/public/index.php/users
Conclusion
In this Codeigniter 4 crud operation example tutorial, You have successfully created a crud application with bootstrap 4 in CodeIgniter 4 application.
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